GB1034248A - Improvements in or relating to the production of fluorocarbons - Google Patents
Improvements in or relating to the production of fluorocarbonsInfo
- Publication number
- GB1034248A GB1034248A GB39024/64A GB3902464A GB1034248A GB 1034248 A GB1034248 A GB 1034248A GB 39024/64 A GB39024/64 A GB 39024/64A GB 3902464 A GB3902464 A GB 3902464A GB 1034248 A GB1034248 A GB 1034248A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cf2cl
- copper
- hydrogen
- catalyst
- earth metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 3
- 239000003054 catalyst Substances 0.000 abstract 3
- 229910052739 hydrogen Inorganic materials 0.000 abstract 3
- 239000001257 hydrogen Substances 0.000 abstract 3
- 238000010438 heat treatment Methods 0.000 abstract 2
- PMJNEQWWZRSFCE-UHFFFAOYSA-N 3-ethoxy-3-oxo-2-(thiophen-2-ylmethyl)propanoic acid Chemical compound CCOC(=O)C(C(O)=O)CC1=CC=CS1 PMJNEQWWZRSFCE-UHFFFAOYSA-N 0.000 abstract 1
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 abstract 1
- 239000005751 Copper oxide Substances 0.000 abstract 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract 1
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 abstract 1
- -1 alkaline earth metal salt Chemical class 0.000 abstract 1
- 238000001354 calcination Methods 0.000 abstract 1
- 150000001879 copper Chemical class 0.000 abstract 1
- VPFKTNOWUDXDHX-UHFFFAOYSA-N copper barium(2+) chromium(3+) oxygen(2-) Chemical compound [O-2].[Ba+2].[O-2].[Cr+3].[Cu+2] VPFKTNOWUDXDHX-UHFFFAOYSA-N 0.000 abstract 1
- 229910000431 copper oxide Inorganic materials 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/86—Chromium
- B01J23/868—Chromium copper and chromium
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/23—Preparation of halogenated hydrocarbons by dehalogenation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
Abstract
Tetrafluoroethylene is made by heating a mixture of CF2Cl.CF2Cl with hydrogen at 350-450 DEG C. in the presence of a copper oxide of chromium-alkaline earth metal oxide catalyst which has been prepared by calcining the precipitate obtained by reacting in solution an ammonium chromate with a copper salt and an alkaline earth metal salt. It is preferred to subject the catalyst to heat treatment in the presence of hydrogen before use. The proportion of hydrogen used is generally 0.75 to 1.25 mols per mol CF2Cl.CF2Cl. Examples relate to the use of a copper-chromium oxide barium oxide catalyst.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US312855A US3354233A (en) | 1963-10-01 | 1963-10-01 | Production of tetrafluoroethylene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1034248A true GB1034248A (en) | 1966-06-29 |
Family
ID=23213314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB39024/64A Expired GB1034248A (en) | 1963-10-01 | 1964-09-24 | Improvements in or relating to the production of fluorocarbons |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3354233A (en) |
| AT (1) | AT248405B (en) |
| BE (1) | BE653363A (en) |
| DE (1) | DE1270547B (en) |
| DK (1) | DK111235B (en) |
| ES (1) | ES304444A1 (en) |
| GB (1) | GB1034248A (en) |
| NL (1) | NL6411278A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005029109A1 (en) * | 2005-06-23 | 2007-01-04 | Süd-Chemie AG | Process for increasing the mechanical resistance of transition metal-containing catalysts |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA577179A (en) * | 1959-06-02 | B. Miller Charles | Production of 1,1,2-trifluoro-2-chloroethylene | |
| US2697124A (en) * | 1952-02-25 | 1954-12-14 | Kellogg M W Co | Dehalogenation of fluorohalocarbons |
| FR1163323A (en) * | 1956-12-17 | 1958-09-24 | Kellogg M W Co | Dehydrohalogenation process |
| DE1073475B (en) * | 1958-07-29 | 1960-01-21 | Farbwerke Hoechst Aktiengesellschaft vormals Meister Lucius &. Brüning, Frankfurt/M | Process for the production of tetrafluoroethylene |
| NL296637A (en) * | 1962-08-16 |
-
1963
- 1963-10-01 US US312855A patent/US3354233A/en not_active Expired - Lifetime
-
1964
- 1964-09-21 BE BE653363A patent/BE653363A/xx unknown
- 1964-09-23 DE DEP1270A patent/DE1270547B/en active Pending
- 1964-09-24 GB GB39024/64A patent/GB1034248A/en not_active Expired
- 1964-09-26 ES ES0304444A patent/ES304444A1/en not_active Expired
- 1964-09-28 DK DK477364AA patent/DK111235B/en unknown
- 1964-09-28 NL NL6411278A patent/NL6411278A/xx unknown
- 1964-09-28 AT AT825764A patent/AT248405B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| US3354233A (en) | 1967-11-21 |
| DK111235B (en) | 1968-07-08 |
| DE1270547B (en) | 1968-06-20 |
| NL6411278A (en) | 1965-04-02 |
| ES304444A1 (en) | 1965-03-16 |
| AT248405B (en) | 1966-07-25 |
| BE653363A (en) | 1965-01-18 |
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